Fix bug in HTTP server example

examples/fiber-ring.rb

@@ -0,0 +1,34 @@
+
+require 'fiber'
+
+# Number of rounds.
+M = ARGV[0] ? Integer(ARGV[0]) : 10
+
+# Number of elements.
+N = ARGV[1] ? Integer(ARGV[1]) : 64
+
+def node(output, id)
+  Fiber.new do |i|
+    while true
+      i = output.transfer(i.succ)
+    end
+  end
+end
+
+LAST = Fiber.new do |i|
+  M.times do
+    puts i
+    i = FIRST.transfer(i.succ)
+  end
+  i = Fiber.yield(i)
+end
+
+FIRST = (0...N).inject(LAST) {|chan, id| node(chan, id) }
+
+i = 0
+M.times do
+  FIRST.transfer(i)
+  i = LAST.resume
+end
+
+puts i

examples/http_server.rb

@@ -28,7 +28,7 @@ def call(env)
     message = req.params['message']
 
     if message.nil?
-      [401, {'Content-Type' => 'text/plain'}, "Please specify a message"]
+      return [401, {'Content-Type' => 'text/plain'}, "Please specify a message"]
     end
 
     puts "Writing message #{message}"